An overview of developments in and components of the standard model of particle physics, this book examines the issues confronting those working in the field. The author is a key name in the development of particle physics. The distinctive feature of this book is its emphasis on the three areas of elementary particle physics a " CP violation, (2) the physics of neutrinos, particularly neutrino mass, and (3) the search for the Higgs boson a "in which there were important developments in the last ten years and for which we expect important experimental results in the next ten years. Written in a mostly quantitative manner, the text provides an authoritative review of the story and state of play in particle physics.